罗宾根螨及其防治

1988年8月首先在红星四场死亡的洋葱鳞茎上发现罗宾根螨;为害不断加重;面积不断扩大,受害严重处洋葱植株腐烂、死亡率达30.45％,是洋葱的第三大害虫,影响洋葱品质和产量,影响加工和脱水,影响出口创汇;国内尚无报导。可用尼索朗、灭扫利、久效磷、敌敌畏、乐果等杀螨剂,兑水浇灌防治,效果较好。

Rzoglyphus robini and its control

Rhizoglyphus robini was found on the dead bulb of onion grown in the state farm Red Star no. 4 in August 1988. Before that there was no report in China. In the past three years the infested area has been increasing continuously and seriously. Whenever the bulb suffers heavily,it blets and its mortality rate reaches 30. 45%. Therefore. Rhizoglyphus robini is the third rnost serious pest to onion production. Ultimately, the pest affects the production of dehydrated vegetable of onion and reduces its exportation for profit. Here some acaricides are recommended to deal with the pest, the onion garden can de watered with solution containing one of the following acaricides, such as hexythiazox, fenpropathrin, monocro-tophos, dichlorovos and dimethoate. This method has a good effect to control the pest.